Luting composition and method of producing the same.



. to which it is applied.

SI-IOSUKE TAMARI, OF TOKYO, JAPAN.

LUTING COMPOSITION AND METHOD OF PRODUCING THE SAME.

No Drawing.

- I melt about 1 part of powdered sulfur by heating and add thereto bydegrees about 3 parts of graphite and a few parts of asbestos,continuing to heat the mixture and stirring it. The mixture is thenallowed to cool after it has been heated to a temperature not lower thanabout 170 C. and has become sticky.

The luting thus manufactured is first melted by subjecting it to a heatof about 170 C., and is then applied to the inside of a box or tubtojany desired thickness. The coating thus applied is then pressed witha hot iron so that it adheres well to the vessel (If a suitable quantityof paraflin is added to the luting when it is melted, the work ofapplying it to vessels is much facilitated.) The luting ap-Speciflcation of Letters Patent.

Patented Oct. 15, 1918.

' Application filed January 19, 1917. Serial No. 143,274.

plied as described above never peels off, and vessels coated with itresist acid. If it is apphed to vessels made of reinforced concrete,strong vessels well adapted for transporting acids will be obtained; andthus we shall be able to attain the object of preserving or transportingacids without using exensive lead plate. ore one most needed at thepresent time.

Having now full described my invention and the manner 0 carrying thesame into I effect, what I claim as new and desire to secure by LettersPatent, 1s-

1. A process of manufacturing an acidproof luting consisting in mixingabout 1 part of molten sulfur with about 3 parts of graphite, stirringthe molten mass and in cooling the mixture after. heating it to atemperature of approximately 170 degrees (3., for the purpose set forth.

2. A luting consisting principally of sulfur and graphite in the ratioof one part of sulfur to three parts of graphite.

In testimony whereof I affix my signature in presence of two witnesses.

SHOSUKE TAMARI. [n 8.]

Witnesses:

K. SUorrA, GENJI KURIBARA.

This invention is there-.

